Lamp



Feb. 12 1924.- A 1,483,355

A. B. KuPscHE y LAMP Filed Marel; .30. 1922 2 Sheets-Sheet 2 zal Wl r/vf s s J4 //v VEN 70@ Patented F eb. i2, i924.

UNIT

STTES ALEXANDER B. Kurscnn, or CHICAGO, iLniN/ors.

LAMP.

Appui-.anun med maren 3o, 1922. serial no. 548,043.

To all whom it may concer/n Be it known that I, ALEXANDER B. Kursonn, a citizen of Latvia, and a resident of Chicago, Cook County, Illinois, have ins vented certain new and useful Improvements in Lamps, of which the following is a specification.

My invention relates generally to improvements in lamps, lbut relates more particularly to improvements in portable lamps and lamp bases.

The general object of my invention is to provide a lamp construction which can be placed upon any table or other support or which, if desired, can be very quickly and easily suspended or mounted upon a vertical surface, such as a wall for example.

It is also an object of my inventiony to provide a lamp construction wherein the lamp can be swung to a large number of different angular positions, as maybe necessary or desirable to project the lightin any desired direction.

I aim also to provide a lamp construction which can be placed at anyl desired angular position withrespect to its base, and which can be there locked against return to its normal or initial position.

I aim also to provide alamp construction which can be made to a large extent from parts that can be purchased in the open market, and remaining parts of which can be produced quickly and at low cost.

My invention consists generally in a device of the form, arrangement, construction and (3o-operation of parts whereby the above named objects, together with others that will appear hereinafter, are attainable; and my invention will be more readily understood by reference to the accompanying drawings, which illustrate what I consider, at the present time, to be the preferred embodiment thereof.

In said drawings:

Fig. l is a side View of a device embodying my invention, a portion thereof being broken away better to disclose the interior construction.

Fig. 2 is a View, on a reduced scale, taken substantially along the line 2-2 of Fig. l..

` Fig. 3 is a sectional view, substantially along the line 3--3 of Fig. 2.

Fig. 4 is a face view of the device used in supporting a lamp upon a wall or other upright surface; and

Fig. 5 is a detail view of the globe or shade portion of thelamp. y

Lamps have heretofore been provided with a view to having a portion thereof placed at different angular positions with respect to the base, but they have either embodied a construction which was undesirable in a lamp for general purposes or else they have involved a construction which after a short period of use fails to remain in any placed position. Y I have devised a lamp whichovercomes these objections and which, at the saine time, is universally applicable in that it mayl be used as 'an 'upright lamp, upon a table or other horizontal support, or it may be used as a wall or bracket light, in either of which .positions the` globe carrying part may be disposed in a number of different angular positions, thereby adapting it for the most efficient use for a variety of purposes:

As here shown, 'the lamp comprises a member l which for convenience may be termed a base, and which is preferably a casting so that sufhcient weight will be present to give stability to the structure. Upsta'nding centrally from the base is a somewhat conical portion 2, which is provided with a central bore or opening 3 for the accommodation of the electric wires, y(not shown). At its upper or outer end the bore 3 is enlarged as indicated at 3" for the reception of a tightly coiled spring 4, which spring 4 provides a conduit 5 through which the electric wires pass to the lamp socket 6, at the upper or outer end thereof. In order to secure the coil spring firmly in place in the 1nember 2 a piece of tubing 7 is inserted atthe lower end so that set screws 8 when pressed against the coil spring will be supported by the tubing 7. At the upper or outer end a similar tube 9 is provided which tube is accommoda'ted in an opening provided in a member 10. rIhe parts 10, tube 9 and coil .spring 4 are secured together as by means of 100 a set screw 11.

For purposes of support as well as ornamentation a plurality of twisted metal strips or bars 12 are provided which extend between the lower end of the member 10 and the lamp shade holding portion 13. The lamp shade or lobe, as here shown, is in the form of a hal moon, and is composed of two parts 14 and 15, respectively, which are secured together by means of aband 17, and 110.

screws 18. This construction permits ot easy manufacture and assembly. Obviously any form ot' incandescent lamp may be used, the one here shown being designated by the reference character 19 and beingof elongated, somewhat cylindrical, form.

The globe or incandescent lamp port-ion, because of the coil spring Il, may be swung to various angular positions with respect to the base, one such position being shown by means ot dotted lines in i? ig. 1. lhile the spring construction might be so made'as initially to remain in any placed posit-ion, after a short period of use, it would lose this capacity and the lamp would Anot serve its intended purpose. .l have, therefore, provided means whereby the globe carrying portion Ycan be positively held in any desired placed position. To this end, l have provided somewhat arcuate shaped members 2O and 21 which are spaced apart a distance sufficient to accommodate the coil spring 4 and to permit it to be swung freely therein, The members 20 and 21 in turn are provided with teeth 22, 23, 24 and 25, respectively, the teeth 23 and 25, being reversed with respect to the teeth 22 and 211, so that they may properly co-operate with a latch about to be described. Swiveled on the coil spring il, as well as mounted for swinging movement thereon is a latch 26, which is provided with a toothlike portion 27, adapted to enter teeth 22 to 25, inclusive. It is obvious that when the coil spring i is swung to any angular position that it can be locked in any position by swinging the latch 2G into engagement with the adjacent teethot the members 20 and 21. in order to provide a convenient means of operating the latch 26, a knob or handle portion 28 is provided thereon. In order to permit engagement of the latch with the teeth on the opposite side, the latch 26 is swung or swiveled around the spring 4.

inasmuch as swinging movement of the coil spring tfrom the straight line position shown in full lines will distend it somewhat the 'teeth portions ot the members 20 and do not follow the arc oil the circle, but are extended Afarther at the ends than at the middle. ln this manner the latch 26 will alwz ys be found in a position to co-operate properly with the aforementioned teeth oithe members 2O and 21.

in order to permit the use of the device as a wall lamp or bracket, have provided a plate member 29 which can be screwed or otherwise secured to the wall, openings 30 beingl provided to accommodate the fastening devices. rhe member 29 is provided with an extension in that form of a tongue 31 which is adapted to enter the openings 32 or 33 that are provided in the base portion 1 ot the lamp. lThe base portion ot the lamp is likewise cut away as indicated at 34 and 35 to accommodate the member 29. Thus the lamp can be quicklyv and easily sup ported upon a vertical surface and when so supported the supporting means areentirely hidden from view. Obviously the lamp when hung upon the wall can be swung to any desired position in the same manner as when mounted upon a table or other hori-.

Zontal support.

Some ot the views shown in the drawings are ornamental in their nature and hence may be varied without departing from the spirit of the invention.

I claim A device of the class described embodying therein a base portion, a lamp carrying portion, a iieXible portion extending therebetween, and means for holding the ieXible portion in any placed position, saidl mea-ns including a curved serrated member which does not follow the arc of a circle, but is extended farther at the ends than at the middle, and a latch for engagement therewith.

In testimony whereof, l have hereunto set my hand, this 21st day of March, A. D.

ALEXANDER B. KUPsoHE. 

